I have an idea for a cydia app. I looked and don't see an app like this available. If there is one, please let me know. If not, I think a developer could make a few bucks with this simple app. I offer my idea for any dev who agrees to my terms. You can make and distribute an app based on my idea, however, My condition is that if you charge for it, you must give me a copy for free. Any other revenue collected you can keep.

My idea is a stealth clock. Upon activating, the iphone will indicate the current time through vibrating. Maybe long pulses to indicate hour, short to indicate 10's of minutes and long to indicate 1' of minutes. That way you can check the time without taking the phone out. This would allow covert checking of the time when on a date, or in a meeting.